Key anatomic landmarks and structural relationships surgeons rely on during common operations.
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- What are the three boundaries of Calot's triangle (cystohepatic triangle)?
- Cystic duct, common hepatic duct, and inferior edge of the liver.
- What key structure is typically found within Calot's triangle?
- The cystic artery.
- Where is McBurney's point located?
- At the junction of the lateral and middle third of a line from the anterior superior iliac spine to the umbilicus.
- What anatomic landmark marks the base of the appendix?
- The convergence of the three taeniae coli of the cecum.
- What are the three boundaries of Hesselbach's triangle?
- Inferior epigastric vessels laterally, lateral border of the rectus sheath medially, and the inguinal ligament inferiorly.
- A direct inguinal hernia passes through the abdominal wall in what relation to the inferior epigastric vessels?
- Medial to the inferior epigastric vessels.
- An indirect inguinal hernia passes through the deep inguinal ring in what relation to the inferior epigastric vessels?
- Lateral to the inferior epigastric vessels.
- What surgical landmark marks the duodenojejunal flexure?
- The ligament of Treitz.
- What embryologic transition does the pectinate (dentate) line mark in the anal canal?
- The transition from hindgut endoderm above to ectoderm below.
- What three structures make up the portal triad?
- The proper hepatic artery, portal vein, and common bile duct.
- What is the Pringle maneuver?
- Temporary clamping of the hepatoduodenal ligament (portal triad) to control bleeding during liver surgery.
- What structure forms the anterior boundary of the foramen of Winslow (epiploic foramen)?
- The hepatoduodenal ligament, which contains the portal triad.
- What does the foramen of Winslow connect?
- The greater and lesser peritoneal sacs.
- During laparoscopic inguinal hernia repair, what major vessels lie within the triangle of doom?
- The external iliac artery and vein.
- During laparoscopic inguinal hernia repair, what nerves lie within the triangle of pain?
- The lateral femoral cutaneous nerve and the femoral branch of the genitofemoral nerve.